Pre-Painted Galvanized/Aluzinc Steel Coil with Best Quality of China

Pre-Painted Galvanized/Aluzinc Steel Coil with Best Quality of China System 1

Pre-Painted Galvanized/Aluzinc Steel Coil with Best Quality of China

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 50 m.t.

Supply Capability:: 10000 m.t./month

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2.Main Features of the Pre-Painted Galvanized/Aluzinc Steel Coil：

• Excellent process capability

• Smooth and flat surface

• Workability, durability

• Excellent heat resistance performance

• High strength

• Good formability

• Good visual effect

3.Pre-Painted Galvanized/Aluzinc Steel Coil Images

Pre-Painted Galvanized/Aluzinc Steel Coil with Best Quality of China

4.Pre-Painted Galvanized/Aluzinc Steel Coil Specification

Standard: AISI, ASTM, BS, DIN, GB, JIS

Grade: DX51D, DX52D

Thickness: 0.17-2.0mm

Brand Name: KMRLON

Model Number: coil

Type: Steel Coil

Technique: Cold Rolled

Surface Treatment: Coated

Application: Boiler Plate

Special Use: High-strength Steel Plate

Width: 20-1250mm

Length: customized

commoidty: pre-painted galvanized steel coil

Thickness: 0.13-4.0mm

width: 20-1250mm

zinc coating: 40-180g/m2

printing thickness: top side: 20+/-5 microns, back side: 5-7 microns

color: all RAL color

surface treatment: color coated

coil weight: 4-7 tons

coil ID: 508/610mm

packaging: standard seaworthy packing

5.FAQ of Pre-Painted Galvanized/Aluzinc Steel Coil

What’s the application of this product?

Roof, roof structure, surface sheet of balcony, frame of window, etc.

What’s the brand of the paint?

We use the best brand of all of the word—AKZO.

Q:Please give me the name of the steel, and the percentage of materials from what It consists, if you can give me five types of steel it will be better so I can decide. Thanks.: Stain less steel.

Q:What are the common surface finishes for steel coils?: Steel coils can have various surface finishes, depending on specific requirements and applications. Some commonly used finishes include: 1. Hot-dip galvanization: This involves immersing the steel coil in molten zinc to create a protective layer. It offers excellent corrosion resistance and is often used outdoors. 2. Electro-galvanization: In this process, a thin layer of zinc is electroplated onto the steel coil. It provides good corrosion resistance and a smooth finish, making it suitable for automotive parts and appliances. 3. Galvannealing: Steel coils are coated with a zinc-iron alloy through a high-temperature annealing process. This finish improves paint adhesion and offers excellent corrosion resistance, making it ideal for automotive parts and construction materials. 4. Tinplating: A thin layer of tin is applied to the steel coil, providing excellent corrosion resistance and a shiny appearance. Tinplate is commonly used for packaging materials and cans. 5. Pre-painting: Steel coils are coated with a layer of paint, offering corrosion resistance and an attractive finish. It is often used for building materials like roofing and siding. 6. Cold-rolling: Steel coils are rolled at room temperature, resulting in a smooth and clean surface. Cold-rolled coils are used when a high-quality surface finish is required, such as in automotive parts and appliances. These are just a few examples of the surface finishes available for steel coils. The choice of finish depends on desired properties, such as corrosion resistance, appearance, and specific application requirements.

Q:What are the different methods of roll forming steel coils?: There exists a variety of techniques for roll forming steel coils, each possessing distinct features and uses. Some prevalent methods encompass: 1. Conventional Roll Forming: This technique, widely employed, involves gradually shaping a continuous steel strip into the desired profile by passing it through a series of rollers. It offers high precision and repeatability, making it ideal for manufacturing intricate shapes and profiles. 2. Pre-Punch and Cut: With this method, the steel strip is pre-punched with holes or slots before undergoing roll forming. This facilitates easier cutting and shaping during the forming process, enhancing efficiency and reducing waste in specific applications. 3. Post-Punch and Cut: Similar to pre-punching and cutting, this method adds holes or slots after the roll forming process. It provides greater flexibility in creating customized shapes and designs since the holes can be precisely placed as required. 4. Post-Forming: On certain occasions, the steel strip is initially roll formed into a basic shape or profile, which is then further manipulated or formed. This approach allows for additional customization and enables the creation of more intricate geometries. 5. Progressive Roll Forming: This technique involves continuously passing the steel strip through a series of rollers, with each roller gradually adding a distinct feature or forming a specific part of the final profile. Progressive roll forming is commonly utilized for lengthy, continuous profiles with repetitive shapes. 6. Incremental Roll Forming: In this method, the steel strip is incrementally shaped by means of small movements of the rollers. It provides greater flexibility in shaping complex profiles and proves particularly useful for producing prototypes or low-volume production runs. Ultimately, the selection of a roll forming method depends on the specific requirements of the application, such as the desired shape, complexity, precision, and production volume. Each method presents its own advantages and limitations, and manufacturers typically choose the most suitable technique based on these factors.

Q:why does steel have a density range when other metals do not?: Steel is not a pure element it is an alloy. Steel is primarily iron but it has many elements blended in that change it's density including carbon,silicon, nickel, chrome, etc. Aluminum and copper , magnesium and so forth can be the pure element or they can be alloys too. If they are alloys, then their densities vary also

Q:how many persent of manganese in all types of carbon steel: i think it is 1.65%...

Q:How are steel coils used in the production of pressure vessels?: Steel coils are used in the production of pressure vessels as they are rolled into cylindrical shapes, which serve as the main structural component of the vessel. The coils are formed and welded together to create a strong and durable container capable of withstanding high pressures.

Q:What are the different methods of laminating steel coils?: There are several different methods of laminating steel coils, each with its own advantages and applications. The most common methods include hot rolling, cold rolling, and continuous annealing. Hot rolling is a process in which steel is heated above its recrystallization temperature and then passed through a series of rollers to produce thin sheets or coils. This method is commonly used for producing large quantities of steel with a consistent thickness and surface finish. Hot rolled steel coils are often used in structural applications, such as construction and automotive manufacturing. Cold rolling, on the other hand, involves passing the steel coil through a series of rollers at room temperature. This process not only reduces the thickness of the steel but also improves its surface finish and mechanical properties. Cold rolled steel coils are typically used in industries that require high precision and quality, such as appliance manufacturing, electrical equipment, and automotive components. Continuous annealing is another method of laminating steel coils. It involves heating the steel coil to a specific temperature and then slowly cooling it in a controlled environment. This process helps to relieve internal stresses and improve the steel's mechanical properties, such as strength and ductility. Continuous annealing is often used for producing high-quality steel coils for applications that require superior surface finish and formability, such as automotive body panels and household appliances. Other less common methods of laminating steel coils include electro-galvanizing, which involves coating the steel with a layer of zinc through an electroplating process, and hot-dip galvanizing, where the steel coil is dipped into a bath of molten zinc. These methods are primarily used for corrosion protection and are commonly seen in the construction industry, particularly for outdoor structures and infrastructure. In summary, the different methods of laminating steel coils include hot rolling, cold rolling, continuous annealing, electro-galvanizing, and hot-dip galvanizing. Each method offers distinct benefits and is chosen based on the specific requirements of the application.

Q:What is the maximum weight capacity for a steel coil lifting device?: The maximum weight capacity for a steel coil lifting device depends on various factors such as the design, size, and specifications of the specific lifting device. It is crucial to refer to the manufacturer's guidelines or consult with a qualified engineer to determine the exact weight capacity for a particular steel coil lifting device.

Q:How are steel coils inspected for camber?: Steel coils are inspected for camber using various methods to ensure their quality and suitability for further processing. One common method is visual inspection, where trained inspectors examine the coils for any visible signs of camber. They look for any deviation from a perfectly straight surface, such as a bow or a curve, which indicates the presence of camber. Another method involves using specialized equipment like straightedges, measuring tapes, and laser devices. Inspectors place the straightedge along the length of the coil to check for any gaps or spaces between the coil and the straightedge. If there is a significant deviation, it indicates the presence of camber. Measuring tapes are also used to measure the distance between the coil and the straightedge at multiple points along the length of the coil. This allows inspectors to determine the extent of camber and whether it falls within the acceptable tolerance limits. In some cases, laser devices are used to provide a more accurate measurement of camber. These devices emit a laser beam that is reflected off the coil's surface and is then analyzed to determine the presence and magnitude of camber. Additionally, advanced technologies such as computer vision systems and artificial intelligence algorithms are also being employed in the inspection process. These technologies can analyze images or videos of the steel coils and automatically detect any camber, providing accurate and efficient inspection results. Overall, the inspection of steel coils for camber involves a combination of visual inspection, manual measurements using straightedges and measuring tapes, as well as the implementation of advanced technologies. This multi-faceted approach ensures that camber is effectively detected and controlled, thus maintaining the quality and integrity of the steel coils.

Q:What are the environmental considerations of using steel coils?: There are several environmental considerations associated with using steel coils. Firstly, the production of steel coils involves a significant amount of energy and resources. Steel production is a carbon-intensive process, contributing to greenhouse gas emissions, particularly from the use of fossil fuels in the manufacturing process. The extraction and processing of iron ore to produce steel coils also require extensive mining activities, which can lead to habitat destruction and soil erosion. Additionally, the transportation of steel coils can have environmental impacts. Steel coils are generally heavy and bulky, requiring large vehicles for transportation. This can result in increased carbon emissions and air pollution due to the use of fossil fuel-powered transportation methods. Furthermore, the disposal or recycling of steel coils can pose environmental challenges. If steel coils are not properly managed after use, they can end up in landfills or incinerators, contributing to waste generation and potential pollution. However, steel is a highly recyclable material, and by implementing effective recycling practices, the environmental impact of steel coil disposal can be minimized. Lastly, the use of steel coils in construction and manufacturing industries can have indirect environmental impacts. Steel coils are commonly used in the construction of buildings and infrastructure, which can result in deforestation and habitat loss due to land clearing. Moreover, the manufacturing processes that utilize steel coils may generate waste, pollutants, and emissions that can harm ecosystems and human health if not properly regulated and managed. To mitigate the environmental considerations associated with using steel coils, various measures can be taken. These include implementing energy-efficient technologies and practices in steel production, promoting sustainable mining practices, optimizing transportation logistics to reduce emissions, encouraging responsible disposal and recycling of steel coils, and promoting the use of alternative materials or steel products with a lower environmental footprint, such as recycled steel or steel with a higher proportion of recycled content.

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